Finding the Fourth Proportional to 11,514,340.61, 15,889,867.02 and 6,287,385.09
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Solution
The fourth proportional to 11,514,340.61, 15,889,867.02 and 6,287,385.09 is: 8,676,633.46
Step by Step Solution
- Step 1: Write the proportion equation
11,514,340.61 : 15,889,867.02 = 6,287,385.09 : x - Step 2: Convert to fraction form
11,514,340.61/15,889,867.02 = 6,287,385.09/x - Step 3: Cross multiply
11,514,340.61x = 15,889,867.02 × 6,287,385.09 - Step 4: Simplify right side
11,514,340.61x = 99,905,712,983,630.73 - Step 5: Solve for x
x = 99,905,712,983,630.73/11,514,340.61 - Step 6: Final answer
x = 8,676,633.46
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.